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Analisi popolazionistica dell'etnia Valdostana attraverso il fenomeno gemellare1

Published online by Cambridge University Press:  01 August 2014

L. Gedda ,
G. Brenci ,
S. Bérard-Magistretti  and
F. Magistretti
L. Gedda
Affiliation:
Istituto di Genetica Medica dell'Università di Roma
G. Brenci
Affiliation:
Istituto di Genetica Medica dell'Università di Roma
S. Bérard-Magistretti
Affiliation:
Istituto di Genetica Medica dell'Università di Roma
F. Magistretti
Affiliation:
Istituto di Genetica Medica dell'Università di Roma

Summary

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The Authors have studied, from the standpoint of population genetics, twins born in the Aosta Valley from 1910 to 1957. This material, consisting in 980 pairs, has been examined from the standpoint of the frequency ot twin deliveries (Gemelliparity Index), of monozygosity (Monozygosity Index), and of patronymic (Patronymic Index). The Authors show that the region may be divided in geo-demographical departments, 6 of which may be considered « isolates » with a high rate of inbreeding. Moreover, the usefulness of the twin-method in population genetics is demonstrated.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 10 , Issue 3 , July 1961 , pp. 270 - 276
Copyright
Copyright © The International Society for Twin Studies 1961

Footnotes

1

Comunicazione presentata al « Primo Simposio » di Statistica Medica. Roma, 11-12 giugno 1961.

References

2 Gedda, L., Bérard-Magistretti, G., Brenci, G. e Magistretti, F.; I Gemelli della Val d'Aosta. Analecta Medica N. 10, Roma, Ed. 1st. Mendel 1961 Google Scholar.